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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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含间甲基取代新型聚芳酰胺的合成和性能
Abstract:
？以一种含间甲基取代新型杂萘联苯结构的芳香二胺:2-(4-氨基苯基)-4-[2-甲基-4-(4-氨基苯氧基)]-2,3-二氮杂萘-1-酮(mm-da)为单体,制备出一类新型的杂萘联苯型聚芳酰胺,以ft-ir、1h-nmr证明了它的聚合物结构,其特性粘度为1.72～2.08dl·g-1,玻璃化转变温度为315～337℃,在氮气气氛中5%热失重温度高于440℃.聚芳酰胺在dmac、nmp等极性非质子溶剂中有良好的溶解性.聚芳酰胺膜的拉伸强度为81～99mpa,断裂伸长率为11.4%～20.8%,拉伸模量为1.91～2.34gpa.扭曲非共平面结构的存在使该系列聚芳酰胺耐高温、具有良好的溶解性能和力学性能.
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